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Enable LRO by default when available on vtnet interfaces

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The prior change to not enable LRO by default has confused several
people. The configurations where LRO is problematic is not the
typical use case for VirtIO, and due to other issues, this often
requires checksum offloading to be disabled anyways.

PR:		185864
MFC after:	2 weeks
This commit is contained in:
Bryan Venteicher 2014-11-09 20:04:12 +00:00
parent 2c59cd89c8
commit 9a4dabdc5a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=274325
1 changed files with 6 additions and 7 deletions
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13
sys/dev/virtio/network/if_vtnet.c
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@ -967,9 +967,14 @@ vtnet_setup_interface(struct vtnet_softc *sc)
ifp->if_capabilities |= IFCAP_VLAN_HWTSO;
}
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_CSUM))
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_CSUM)) {
ifp->if_capabilities |= IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6;
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO6))
ifp->if_capabilities |= IFCAP_LRO;
}
if (ifp->if_capabilities & IFCAP_HWCSUM) {
/*
* VirtIO does not support VLAN tagging, but we can fake
@ -987,12 +992,6 @@ vtnet_setup_interface(struct vtnet_softc *sc)
* Capabilities after here are not enabled by default.
*/
if (ifp->if_capabilities & IFCAP_RXCSUM) {
if (virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_with_feature(dev, VIRTIO_NET_F_GUEST_TSO6))
ifp->if_capabilities |= IFCAP_LRO;
}
if (sc->vtnet_flags & VTNET_FLAG_VLAN_FILTER) {
ifp->if_capabilities |= IFCAP_VLAN_HWFILTER;